1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rudik [331]
3 years ago
11

Which era is where dinosaurs came

Physics
2 answers:
vodka [1.7K]3 years ago
7 0
The era that dinosaurs came was in the Mesozoic Era!
AleksAgata [21]3 years ago
5 0
On every continent that represents rocks anything jurrasic on the earths surface
You might be interested in
A playground slide is inclined 40°. If a boy with a mass of 32 kg slides down for -3meters. How much work is done by gravity on
telo118 [61]

Answer:

the work done by gravity on the boy is 604.62 J

Explanation:

Given;

distance the boy slides, d = 3 m

angle of inclination of the playground, θ = 40⁰

mass of the boy, m = 32 kg

The vertical height, h, above the ground through which the boy falls represents the height of the triangle which is the opposite side.

The distance through which the boy slides, d, represents the hypotenuse side of the right triangle.

sin \theta = \frac{opposite }{hypotenuse} \\\\sin \theta = \frac{h}{d} \\\\h = dsin\theta\\\\h = 3 \times sin(40^0)\\\\h = 1.928 \ m

The work done by gravity on the boy is calculated as;

W = P.E = mgh

             = 32kg x 9.8m/s² x 1.928m

             = 604.62 J

Therefore, the work done by gravity on the boy is 604.62 J

8 0
3 years ago
A body of mass 80kg was lifted vertically through a distance of 5.0 metres. Calculate the work done on the body. ( Acceleration
sleet_krkn [62]

Answer:

80×5×10=4000J

so therefore, work done on the body is 4000J

8 0
3 years ago
A Ray of light falling on rough surface follows the laws of reflection but no image of the object placed before it is C explain
stepladder [879]

Answer:

The light rays falling on a rough surface does follow the laws of reflection. The light rays are incident parallel on the rough surface but due to uneven surface the light rays are not reflected parallel rather they are reflected in different direction. Hence, no image is formed.

4 0
3 years ago
What do these compounds have in common H2O cl2 NH3
nasty-shy [4]

Answer:

All the compounds are covalent compounds . This means that they are formed by the sharing of pair of electrons.

7 0
3 years ago
The magnetic field in the region between the poles of an electromagnet is uniform at any time, (1 point) but is increasing at th
olga nikolaevna [1]

Answer:

B)

The magnitude of induced emf in the conducting loop is 0.99 mV.

Explanation:

Rate of increase in magnetic field per unit time = 0.090 T/s

Area of the conducting loop = 110 cm^2 = 0.0110 m^2

Electromagnetic induction is the production of an emf or voltage in a coil of wire due to a changing magnetic field through the coil.

Induced e.m.f is given as:

EMF = (-N*change in magnetic field/time)*Area

EMF = rate of change of magnetic field per unit time * Area

EMF = 0.090 * 0.0110

EMF = 0.00099 V

EMF = 0.99 mV

5 0
3 years ago
Other questions:
  • A 35 g steel ball is held by a ceiling-mounted electromagnet 4.0 m above the floor. A compressed-air cannon sits on the floor, 4
    10·1 answer
  • If we increase the distance traveled when doing work , and keep all other factors the same, what will happen?
    6·2 answers
  • Which structure is responsible for breaking down sugar molecules in order to supply energy to the cell? A B C D
    9·1 answer
  • Help.
    13·1 answer
  • The inventor of a new machine claims that its actual mechanical advantage is 4. Literature on the machine reports its input dist
    6·1 answer
  • Pls help me ASAP it is for a final I dont understanddddd<br> Real help
    5·2 answers
  • Cross-training employees is only necessary in the genetic science industry.<br> O True<br> O False
    5·2 answers
  • 8) PLZ HELP ME PLZ HELP ME ASAP ASAP ASAP
    7·2 answers
  • Temperature of the resistor in an RC circuit. In this problem we will look at the temperature response of the resist
    8·1 answer
  • A 500 N person stands on a unifrom board of weight 100 N and length 8.0 m. The board is supported at each end. If the support fo
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!